Terminal resistance circuit, chip and chip communication device

A terminal resistance and resistance circuit technology, which is applied to logic circuits using specific components, logic circuits using basic logic circuit components, electronic switches, etc., can solve problems such as abnormal operation of the chip system, chip conduction, short circuit, etc., and achieve improvement The effect of stability
CN112731828AActive Publication Date: 2021-04-30SHENZHEN PANGO MICROSYST CO LTD
11 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHENZHEN PANGO MICROSYST CO LTD
Publication Date
2021-04-30

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The embodiment of the invention discloses a terminal resistance circuit, a chip and a chip communication device, and relates to the technical field of semiconductor integrated circuits. The terminal resistance circuit is applied to a high-speed differential I / O pair of a chip, the high-speed differential I / O pair comprises a first interface and a second interface, the terminal resistance circuit comprises two resistance circuits and a control circuit, one ends of the two resistance circuits are electrically connected with the first interface after the two resistance circuits are connected in series, and the other ends of the two resistance circuits are electrically connected with the second interface after the two resistance circuits are connected in series, a target node is arranged on the wire between the two resistance circuits, and the two resistance circuits are symmetrically arranged relative to the target node; and the control circuit is electrically connected with the two resistance circuits respectively and is used for controlling the two resistance circuits to be in an off state in the power-on process of the chip. According to the invention, the problem of abnormal system operation caused by short circuit of the two I / Os in the power-on process of the chip can be avoided, and the working stability of the chip is improved.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The present application relates to the technical field of semiconductor integrated circuits, and more specifically, to a terminal resistance circuit, a chip, and a chip communication device. Background technique

[0002] With the rapid development of integrated circuits, Field Programmable Gate Array (Field Programmable GateArray, FPGA) chip, as a programmable logic device, has gradually evolved from a peripheral device of electronic design to a core of digital system in just over 20 years. At the core, along with the advancement of semiconductor process technology, the design technology of FPGA chips has also achieved leapfrog development and breakthroughs. Due to the characteristics of high density, high security, low power consumption, low cost, system integration, and dynamic reconfigurability, FPGA chips have been widely used in communication, aerospace, consumer electronics and other fields.

[0003] However, at present, the chip usually has a t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More